1W Blue Laser vs. Thermometer!

[Guyfromhe]

CAn you pop popcorn with a 1w eventually or do you need more jam?

 

[Helios]

CAn you pop popcorn with a 1w eventually or do you need more jam?

You gotta spin it but yes.
‪laser popcorn‬‏ - YouTube

 

[Guyfromhe]

You gotta spin it but yes.
‪laser popcorn‬‏ - YouTube

Cool. I remember Adam and Jamie doing it with that 10w but I wasn't sure if a 1w would do it... That guy said he used 2 so I guess that means 2 watts of total power on the kernel... Would a 1w do it in say a minute or do lasers not work that way?

 

[JBTexas]

Are we going to rate lasers by "soups and popcorn" now? Maybe the "Campbell's Laser Scale".

 

[Astralist]

i wanna try this at home :eg:

 

[Wolfman29]

Still though - it takes an 1100W microwave to heat up a cup of coffee. Do you really think that a 1W laser could do it?

 

[Guyfromhe]

Still though - it takes an 1100W microwave to heat up a cup of coffee. Do you really think that a 1W laser could do it?

A microwave doesn't really focus all it's power on the coffee the way a laser would... I dunno tho... 1 Watt might not be enough...


We could use the "Campbell Power" scale

 

[HIMNL9]

..... You're a thermometer killer .....

 

[styropyro]

Assuming 100% absorption of light and no loss of heat, it would take nearly 22 hours for a 1W laser to heat up a cup of water to boiling from 20ºC. When compared to any other heating device, 1W is a very tiny amount of power. It would be much easier to heat up water with an incandescent light bulb.

 

[Guyfromhe]

Assuming 100% absorption of light and no loss of heat, it would take nearly 22 hours for a 1W laser to heat up a cup of water to boiling from 20ºC. When compared to any other heating device, 1W is a very tiny amount of power. It would be much easier to heat up water with an incandescent light bulb.

I would be more fun with a laser even if it took a full day

 

[Helios]

Assuming 100% absorption of light and no loss of heat, it would take nearly 22 hours for a 1W laser to heat up a cup of water to boiling from 20ºC. When compared to any other heating device, 1W is a very tiny amount of power. It would be much easier to heat up water with an incandescent light bulb.

Very true ^^^ The only place that lasers excel is energy density. They can concentrate their energy on a VERY small area which can make the point extremely hot as for heating large volumes they are quite weak.

 

[Guyfromhe]

Very true ^^^ The only place that lasers excel is energy density. They can concentrate their energy on a VERY small area which can make the point extremely hot as for heating large volumes they are quite weak.

So a thimble of soup

Also they excel is coolness density!

 

[Helios]

So a thimble of soup

Also they excel is coolness density!

It will boil coffee almost instantly but only in one very small area.

 

[styropyro]

So a thimble of soup

It would take 49 minutes to boil a teaspoon of water from 20ºC. (Again assuming 100% energy conversion and no heat loss)

 

[Guyfromhe]

It would take 49 minutes to boil a teaspoon of water from 20ºC. (Again assuming 100% energy conversion and no heat loss)

But it would be laser boiled water! you could sell it on eBay for like $50!

 

[Wolfman29]

I remember seeing a video of a guy with his CO2 laser warming up his cup of coffee in the morning (was a huge, like 50kW CO2).